Fair Value Measurements (Details) - USD ($)	3 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Business Combination, Contingent Consideration Arrangements, Description	42% of the amount by which EBITDA for the resort operations, as calculated under the lease, exceed approximately $35 million, as established at the transaction date, with such threshold amount subsequently increased annually by an inflation linked index and a 10% adjustment for any capital improvements or investments made under the lease by the Company (the "Contingent Consideration").
Contingent Consideration, Key Assumptions for Valuation	The fair value of Contingent Consideration includes the resort operations of Park City Mountain Resort, following completion of the acquisition, in the calculation of EBITDA on which participating contingent payments are made, and increases the EBITDA threshold before which participating contingent payments are made by 10% of the purchase price paid by the Company for Park City Mountain Resort along with all future capital expenditures associated with Park City Mountain Resort. The Company estimated the fair value of the Contingent Consideration payments using an option pricing valuation model. As of October 31, 2015, key assumptions included a discount rate of 11.5%, volatility of 20.0%, and credit risk of 2.5%. The model also incorporates assumptions for EBITDA and capital expenditures, which are unobservable inputs and thus are considered Level 3 inputs.
Contingent Consideration, Fair Value Disclosure	$ 6,900,000	$ 6,000,000	$ 6,900,000	$ 10,500,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	0	4,500,000
Fair Value, Inputs, Level 3 [Member]
Contingent Consideration, Fair Value Disclosure	6,900,000	6,000,000	6,900,000
Money Market [Member]
Cash equivalents measured at fair value		8,391,000	7,577,000
Money Market [Member] | Level 1 [Member]
Cash equivalents measured at fair value		8,391,000	7,577,000
Commercial Paper [Member]
Cash equivalents measured at fair value	2,401,000	1,770,000	2,401,000
Commercial Paper [Member] | Level 2 [Member]
Cash equivalents measured at fair value	2,401,000	1,770,000	2,401,000
Certificates of Deposit [Member]
Cash equivalents measured at fair value	2,901,000	3,530,000	2,651,000
Certificates of Deposit [Member] | Level 1 [Member]
Contingent Consideration, Fair Value Disclosure			0
Certificates of Deposit [Member] | Level 2 [Member]
Cash equivalents measured at fair value	$ 2,901,000	$ 3,530,000	2,651,000
Contingent Consideration, Fair Value Disclosure			$ 0